My brother has the One M8 and the only thing I'm not a fan of is the Android. Great battery life. Gorgeous phone. Light. The camera is actually quite good. MicroSD support. As much as I love my Nokias, I can't say that I use many of the exclusive apps much.
This shows what WP 8.1 did, opening up the door to bring over good Android devices. I wonder if we may get a Galaxy for Windows from Samsung? With no license fee, it's actually cheaper for the OEMs to go WP now due to the patent fees and access payments to Google services. Will they push it?